For some reason when kodi is playing the artwork does not show up in the web browser for home assistant. What’s even stranger is when I view the web page from my iPhone safari browser I am prompted to login to my kodi instance. If I cancel no artwork displays, but if I login the artwork will then show up. This only occurs with the iPhone browser, my pc never prompts or displays artwork. I believe I have the configuration set correctly because it always displays the title of what is playing. Ideas?
There was a known bug with how cover art was proxied recently. If possible try the dev release or await the next version to see if that fixed this for you.